Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-98077— netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，以下漏洞已修复： netfilter: nf_conntrack_sip：修复 sip_skip_whitespace() 中的越界读取问题 当 函数自身的循环耗尽缓冲区（即 ）时，它返回的是 unchanged 的 ，而不是像其兄弟函数 在遇到“无更多数据”路径时那样返回 。 函数仅在调用该函数后检查返回值是否为 ： 因此，当一个可识别的 SIP 头名称后面仅跟随空格或制表符，并且这些空白字符恰好延伸至 SIP 载荷的末尾，且没有冒号（ ）时，下一条语句将读取缓冲区之外的一字节内存。 本修

AI Predicted 7.5 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ea45f12a2766dae54e5426a23e8f4bafdbe2782e< 9ae0a87e6f513293677fe286729fbae34d592215 affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< b6277622b7323000895b674321c9a1f060553188 affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< 0cfb96a118c5c6d46d7a1cfdfa18355ad734ca79 affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< c6beb08b1a9fdb96795816d8329ed75dd785d48e affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< 60c012b2d05e1558b0f30ea3f15a2c3ca2f24d94 affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< 4be8380e3af008f418f97992c06f23be649a430d affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< 4a30aa2ba007db18210dd52219ecbd5528c03523 affected
ea45f12a2766dae54e5426a23e8f4bafdbe2782e< e8f8231824b5815f57ce62cba116e511b10196de affected
… +10 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-98077

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace() sip_skip_whitespace() returns dptr unchanged when its own loop exhausts the buffer (dptr == limit), instead of NULL like its sibling sip_follow_continuation() returns on its own "no more data" path. ct_sip_get_header() only checks for NULL after calling it: dptr = sip_skip_whitespace(dptr, limit); if (dptr == NULL) break; if (*dptr != ':' || ++dptr >= limit) break; so a recognized header name followed only by spaces/tabs running to the exact end of the SIP payload, with no colon, makes the very next statement read one byte past the buffer. Make both "no more data" outcomes return NULL, matching the convention sip_follow_continuation() already uses and that both existing callers already check for.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ea45f12a2766dae54e5426a23e8f4bafdbe2782e ~ 9ae0a87e6f513293677fe286729fbae34d592215 -
Linux Linux 2.6.26 -

II. Public POCs for CVE-2026-98077

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-98077

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-98077 (8)

Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total

CVE-2026-100075 9.8 CRITICAL RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters
CVE-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
CVE-2026-97957 8.8 HIGH net: hinic: fix mailbox segment buffer overflow
CVE-2026-97527 8.8 HIGH scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
CVE-2026-97528 8.8 HIGH scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
CVE-2026-98115 8.8 HIGH ksmbd: safely drain sessions during logoff
CVE-2026-97525 8.2 HIGH x86/mm/pat: Allocate split page tables as kernel page tables
CVE-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
CVE-2026-97573 8.1 HIGH bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
CVE-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-98002 7.8 HIGH iommu/amd: Fix ineffective error check in nested domain allocation
CVE-2026-97575 7.8 HIGH media: v4l2-ctrls: validate AV1 tile counts
CVE-2026-97576 7.8 HIGH media: v4l2-ctrls: validate HEVC tile counts
CVE-2026-97941 7.8 HIGH mm/slab: take n->list_lock in __slab_try_return_freelist() to avoid race
CVE-2026-98112 7.8 HIGH ksmbd: fix listener task lifetime on netdev events
CVE-2026-97937 7.8 HIGH ftrace: fork: Initialize function graph state before copy_exec_state()
CVE-2026-97580 7.8 HIGH media: rkvdec: bound HEVC tile loops and PPS id to the array capacity
CVE-2026-97940 7.8 HIGH ipv6: fix fib6 walker UAF on seq stop

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98077

No comments yet

Leave a comment